Exactly. Before a company invests in moving all their processes into a system like this, there needs to be some kind of legal statement that says 'should we ever get acquired / close down, we'll release the code to paying customers'.
That can be a slippery slope, because with more money and time, they can keep finding ways to "make it happen." When is the line drawn? Maybe the should publicly state a date to release the project to the people if they cannot complete the project.
It would nice to see all crowd source projects have a clause that if the project fails or is mothballed, then the project code and assets are released open source.
Haunts: The Manse Macabre and all assets could be place on github for the users to continue.